EP 0739143 A3 19961218 - Video signal coding system and method
Title (en)
Video signal coding system and method
Title (de)
System und Methode zur Kodierung von Videosignalen
Title (fr)
Méthode et dispositif pour coder un signal vidéo
Publication
Application
Priority
- EP 91301467 A 19910225
- JP 4484690 A 19900226
- JP 4752190 A 19900228
- JP 4753190 A 19900228
Abstract (en)
[origin: EP0444839A2] In a video signal transmission system, in which video signals are transformed to high efficiency coded data and are then transmitted, a quantization step size is enlarged in quantizing picture data intra coded to be effectively avoided the amount of data generated excessively increasing. The data residual amount of transmission buffer memory is set to a small level as compared to the data residual amount at which the frame dropping is completed. Video signals which are intra coded are then sent immediately after a transmission line is connected to a destination to be enhanced in facility. <IMAGE> <IMAGE>
IPC 1-7
IPC 8 full level
H04N 7/26 (2006.01); H04N 7/30 (2006.01); H04N 7/32 (2006.01); H04N 7/46 (2006.01); H04N 7/50 (2006.01)
CPC (source: EP US)
H04N 19/112 (2014.11 - EP US); H04N 19/126 (2014.11 - EP US); H04N 19/132 (2014.11 - EP US); H04N 19/159 (2014.11 - EP US); H04N 19/172 (2014.11 - EP US); H04N 19/176 (2014.11 - EP US); H04N 19/587 (2014.11 - EP US); H04N 19/60 (2014.11 - EP US); H04N 19/61 (2014.11 - EP US); H04N 19/80 (2014.11 - EP US); H04N 19/82 (2014.11 - EP US); H04N 19/124 (2014.11 - EP US); H04N 19/13 (2014.11 - EP US); H04N 19/146 (2014.11 - EP US); H04N 19/149 (2014.11 - EP US); H04N 19/15 (2014.11 - EP US); H04N 19/152 (2014.11 - EP US); H04N 19/50 (2014.11 - EP US); H04N 19/91 (2014.11 - EP US)
Citation (search report)
- [A] EP 0197446 A1 19861015 - SIEMENS AG [DE]
- [A] EP 0323362 A1 19890705 - THOMSON GRAND PUBLIC [FR]
- [A] EP 0336510 A2 19891011 - PHILIPS PATENTVERWALTUNG [DE], et al
- [A] EP 0330455 A2 19890830 - TOSHIBA KK [JP]
- [A] ZIEGLER M: "HIERARCHICAL MOTION ESTIMATION USING THE PHASE CORRELATION METHOD IN 140 MBIT/S HDTV-CODING", 30 August 1989, SIGNAL PROCESSING OF HDTV, 2, TURIN, AUG. 30 - SEPT. 1, 1989, NR. WORKSHOP 3, PAGE(S) 131 - 137, CHIARIGLIONE L, XP000215234
- [A] KATO ET AL.: "A MOTION PICTURE CODING ALGORITHM USING ADAPTIVE DCT ENCODING BASED ON COEFFICIENT POWER DISTRIBUTION CLASSIFICATION", IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, vol. SAC-5, no. 7, August 1987 (1987-08-01), pages 1090 - 1099, XP000605073
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
US 5164828 A 19921117; DE 69130076 D1 19981008; DE 69130076 T2 19990429; DE 69132646 D1 20010802; DE 69132646 T2 20020425; DE 69133024 D1 20020704; DE 69133024 T2 20030206; EP 0444839 A2 19910904; EP 0444839 A3 19940209; EP 0444839 B1 19980902; EP 0739142 A2 19961023; EP 0739142 A3 19961218; EP 0739142 B1 20010627; EP 0739143 A2 19961023; EP 0739143 A3 19961218; EP 0739143 B1 20020529; KR 100248692 B1 20000315
DOCDB simple family (application)
US 65878791 A 19910221; DE 69130076 T 19910225; DE 69132646 T 19910225; DE 69133024 T 19910225; EP 91301467 A 19910225; EP 96110475 A 19910225; EP 96110477 A 19910225; KR 910003080 A 19910226